![]() ![]() ![]() Integrated into this powerful software known for it’s parametric, history-based, reverse engineering capability, is a power tool to convert 3D scan data (triangulated mesh in formats like. One such software that optimizes the NURBS creation process is Geomagic Design X. Additionally, a number of 3D scan data processing software manufacturers have created simple and automated workflows to create the NURBS surface model from a 3D scan of an object. Many native CAD users would find it beneficial because a NURBS model can be exported as a universal file such as STEP, IGES and Parasolid. Although the NURBS technique is known for more organic shapes, it can be applied to many industries. It has many strengths due to the flexibility. Why choose NURBS as a modeling technique? It is more suited for parts that require higher accuracy and more of a “real” world situation that may include any defects, ejector marks, warp, etc. Industrial CAD designers may prefer a solid model because of the way they can interact and manipulate the CAD geometries for prismatic part design, but NURBS surface modeling can be more beneficial than a solid model in many applications. For these types of objects, NURBS surface modeling provides an easier workflow to obtaining 3D CAD geometry then solid modeling as it is derived directly from the 3D scan data. What you may not learn easily is that NURBS surface creation techniques are best applied when modeling complex and freeform shapes, as the final model represents the closest representation to the true/real geometry with greater accuracy and reduced labor time. When searching for information on NURBS modeling, you will find that the acronym stands for Non-Uniform Rational Basis Splines (B-Splines). This computerized 3D modeling method consists of applying digital contours and surface patches directly on 3D scan data to represent the geometry of the 3D scanned object mathematically. Architecture, Engineering, Construction. ![]() When you’re able to show your designs in 3D verses a static 2D drawing the experience is more realistic. Moving from 2D to 3D improves how your ideas and concepts are shown and communicated. ![]()
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